"[d’Arkor] was a complete master of his vocal resources, with great freedom in his upper register and brilliant top notes that were thrilling. He had ample middle and low registers, and commanded a fine mezza voce. D’Arkor sang with elegance and style and enjoyed a handsome stage presence….A superlative artist and one of the finest tenors of his generation, he has fortunately left a fine legacy of recordings, including representations of some roles he never sang on stage."